JP5579579B2 - Portable radiographic image detection apparatus, radiographic imaging system, and location confirmation method for portable radiographic image detection apparatus - Google Patents

Description

  The present invention relates to a portable radiographic image detection apparatus, a radiographic imaging system, and a location confirmation method for a portable radiographic image detection apparatus.

  A radiographic imaging system, for example, an X-ray imaging system, includes an X-ray source that emits X-rays toward a subject (human body), an X-ray detector that detects an image by receiving X-rays transmitted through the subject, And an imaging control device, an image processing device (console), and the like, which are installed in a dedicated imaging room or the like in the hospital.

  Recently, an X-ray detector using a flat panel detector (FPD) instead of an X-ray film or an imaging plate (IP) has become widespread. In addition, a portable X-ray image detection apparatus (hereinafter referred to as a cassette) in which an X-ray detector is built in a rectangular parallelepiped housing has been developed. There are many types of cassettes with different uses and sizes. For example, several types of cassettes are usually prepared in hospitals for standing position shooting and standing position shooting. When performing X-ray imaging, a radiographer appropriately selects and uses a cassette suitable for imaging conditions and the like via a console (see Patent Documents 1 and 2).

JP 2009-219585 A JP 2009-045150 A

  Conventionally, in a system that handles a plurality of cassettes, an indicator such as an LED is provided in each cassette, and the display of the indicator of the cassette that has been selected for use by a radiologist is switched, so that the desired cassette is surely selected. I was noticing.

  However, in the notification by the indicator, when the cassette is set on a bed for standing position shooting or a stand for standing position shooting, the indicator may be hidden and become invisible, or the display of the indicator may not be known at a distance. For this reason, it is necessary to bother to pull out the set cassette or to check the display near the cassette. If this confirmation work is neglected, there may be a situation in which photographing is mistakenly performed with a cassette that has not been selected being set, so this is a troublesome and time-consuming work.

  The present invention has been made in view of the above problems, and an object of the present invention is to reduce the work load and to facilitate photographing.

  In order to achieve the above object, a portable radiographic image detection apparatus of the present invention includes a radiation detector that receives an image transmitted through a subject and detects an image, and a receiving unit that receives various control signals from an external control device. A voice output speaker for reporting the location of the radiation image detection device, a voice output control means for controlling voice output by the speaker, and a portable housing for housing each part, and the voice output control. The means is selected to use the radiological image detection apparatus for imaging, and when the first instruction signal from the external control apparatus is received by the receiving means, or the radiographic image detection apparatus is selected to be used for imaging. In this case, when the second instruction signal from the external control device is received by the receiving means, a sound is output from a speaker.

  The voice output control means outputs from the speaker a voice in which at least one of a volume, a pitch, and a tone color differs depending on whether the receiving means receives the first instruction signal or the second instruction signal. Let

  For example, the manner of increasing or decreasing the volume or the pitch of the pitch is changed depending on whether the receiving means receives the first instruction signal or the second instruction signal. More specifically, when the first instruction signal is received and when the second instruction signal is received, the volume of one of the sounds is set from high to low, the other is set from low to high, or the pitch of one of the sounds is set from high. Low, change the other from low to high. In a preferred embodiment, when one receives the second instruction signal, the other receives the first instruction signal.

  The radiographic imaging system of the present invention reports a radiation detector that receives an image transmitted through a subject and detects an image, receiving means for receiving various control signals from an external control device, and the location of the radiographic image detection device. A plurality of portable radiological image detection apparatuses, a plurality of radiographic image detection apparatuses, and a plurality of portable radiographic image detection apparatuses each having a speaker that outputs sound for sound, audio output control means for controlling sound output by the speakers, and a portable housing that accommodates each unit An operation input device that selects a radiological image detection device to be used for imaging, and an external control device that transmits various control signals to the radiological image detection device to control driving of the radiographic image detection device, The external control device is for one of the radiation image detection device selected by the operation input device and the radiation image detection device not selected. When the first instruction signal and the second instruction signal are respectively transmitted by the receiving unit and the first instruction signal and the second instruction signal are received by the receiving unit, the sound output control unit of the radiological image detection apparatus outputs a sound from the speaker. It is characterized by outputting.

  The external control device transmits a second instruction signal first, and transmits a first instruction signal after a predetermined time has elapsed. The predetermined time is, for example, an audio output time of one of the radiological image detection devices that is not selected by the operation input device.

  The external control device manages a use history of the radiological image detection device, and transmits a second instruction signal to a recently used radiographic image detection device among radiographic image detection devices not selected by the operation input device. .

  The location confirmation method of the portable radiographic image detection apparatus according to the present invention includes an operation input step of selecting a radiographic image detection apparatus to be used for imaging from among a plurality of portable radiographic image detection apparatuses by an operation input device, and the operation A transmission step of transmitting an audio output instruction from an external control device to one of the radiation image detection device selected in the input step and the radiation image detection device not selected, and the instruction in the transmission step And a sound output step of outputting sound for reporting the location of the radiation image detection device from the speaker of the received radiation image detection device.

  According to the present invention, a portable radiographic image detection apparatus is equipped with a speaker that outputs sound for reporting the location, and a radiographic image detection apparatus selected to be used for imaging, and a radiographic image not selected Since the sound is output from one speaker of the detection device, the radiation image detection device set on the bed for standing position shooting or the stand for standing position shooting is extracted, or the indicator is approached near the radiation image detection device Confirmation work such as confirming the display of is eliminated. Therefore, it is possible to reduce the work burden and to smoothly perform shooting.

1 is a perspective view showing a schematic configuration of an X-ray imaging system. It is a perspective view which shows the structure of an electronic cassette. It is a block diagram which shows the electric constitution of a X-ray imaging system. It is a figure which shows the example of an audio | voice output. It is a flowchart which shows the procedure of an audio | voice output process. It is a figure which shows the example of the usage history information of an electronic cassette.

  In FIG. 1, an X-ray imaging system 2 includes an imaging apparatus 10 installed in an imaging room of a hospital, a hanging movement apparatus 11, an imaging control apparatus 12 installed in a small room next to the imaging room, and a console. 13 (both are shown in FIG. 3), and both the standing position and the standing position can be taken.

  The imaging apparatus 10 includes an X-ray source 14 and two electronic cassettes 15a and 15b. The X-ray source 14 is wired to the imaging control device 12 and supplied with power from the imaging control device 12. The X-ray source 14 is used for both standing and lying-up imaging, and an X-ray tube 16 that generates X-rays by a high voltage from a driver 51 (high voltage generator, see FIG. 3) and the X-ray tube 16 are generated. The collimator 17 restricts the X-ray irradiation field to a rectangular shape. The X-ray source 14 is attached to the lower end of a column 18 that expands and contracts in the Z-axis direction via an arm (not shown) that can rotate a predetermined angle around the Z-axis (vertical axis) and the horizontal axis. The X-ray source 14 can be moved to a desired position in the XY plane (horizontal plane) and the Z-axis direction by the arm and the support column 18.

  The electronic cassette 15a is set on the tray 20 of the bed 19 for lying position photography. The electronic cassette 15a has an area enough to cover the entire chest of the subject (human body) and is arranged with the image receiving surface facing the ceiling of the imaging room. The tray 20 is provided so as to be movable in the Y-axis direction, and moves following the movement of the X-ray source 14 and the change of the direction.

  The bed 19 is installed, for example, at one corner of a photographing room, and its longitudinal direction is arranged along the Y axis. The bed 19 has a movable support (not shown) that expands and contracts so that the height from the floor can be adjusted, and moves up and down following the expansion and contraction of the X-ray source 14 in the Z-axis direction by the support 18. The portion of the bed 19 on which the subject lies is made of a material through which X-rays emitted from the X-ray source 14 are transmitted almost completely so that the bed 19 does not appear in the X-ray image.

  On the other hand, the electronic cassette 15b is set in the holder 22 of the stand 21 for standing position photography. The stand 21 is placed, for example, at a diagonal corner of the bed 19 in the photographing room. Similar to the electronic cassette 15 a, the electronic cassette 15 b has an area enough to cover the entire chest of the subject, and is arranged with the image receiving surface facing the front of the stand 21. The electronic cassette 15b is supported by the stand 21 via the holder 22 so that it can move up and down in the Z-axis direction and can rotate about a horizontal axis by a predetermined angle. Here, for convenience, the electronic cassette for the standing position shooting is 15a and the standing position shooting is 15b. However, the electronic cassette 15a may be used for the standing position shooting and the electronic cassette 15b may be used for the position shooting.

  The suspension type moving device 11 is for changing the position of the X-ray source 14 in the XY plane. The suspension type moving device 11 includes two fixed rails 23 and a movable rail 24, and a pair of traveling units 25 and a carriage 26 connected to these.

  The fixed rail 23 is fixed to the ceiling of the photographing room so that its longitudinal direction is along the Y axis. A groove is formed in the fixed rail 23, and the cross section is substantially U-shaped. The fixed rails 23 are arranged so that the grooves are opposed to each other.

  The movable rail 24 and the traveling unit 25 are coupled, and the movable rail 24 is coupled to the fixed rail 23 by the traveling unit 25 so that the longitudinal direction thereof is along the X axis. The traveling unit 25 has a roller that fits into the groove of the fixed rail 23, and the roller rotates in the groove of the fixed rail 23, so that the movable rail 24 moves along the fixed rail 23 in the Y-axis direction. Grooves are formed in the movable rails 24 in the same manner as the fixed rails 23, and the movable rails 24 are arranged so that the grooves are opposed to each other.

  The carriage 26 includes a carriage body 27 and a pair of travel units 28. The bottom surface of the cart body 27 is connected to the top surface of the support column 18, and the top surface is connected to the movable rail 24 by the traveling unit 28. The traveling unit 28 has a roller that fits in the groove of the movable rail 24, and the carriage body 27 moves in the X-axis direction along the movable rail 24 as the roller rotates in the groove of the movable rail 24. As the movable rail 24 and the carriage 26 move, the X-ray source 14 held by the carriage 26 and the support column 18 moves in the X-axis or Y-axis direction.

  In FIG. 2, the electronic cassette 15a has a substantially rectangular shape and is normally used without a cable. The electronic cassette 15a incorporates an X-ray detector 35. The X-ray detector 35 is, for example, a flat panel detector (FPD) having a matrix substrate in which a plurality of pixels including thin film transistors (TFTs) and X-ray detection elements are two-dimensionally arranged. The X-ray detector 35 accumulates charges corresponding to the amount of incident X-rays when the TFT is turned off by the X-ray detection element. Then, the TFT is turned on to read out the charge accumulated in the X-ray detection element. The read charge is converted into a voltage signal by an integrating amplifier of the signal processing unit 62 (see FIG. 3), and the converted voltage signal is A / D converted by an A / D converter of the signal processing unit 62, thereby obtaining a digital image. Data is generated.

  The electronic cassette 15a incorporates a battery 36 and an antenna 37 together with the X-ray detector 35. The battery 36 supplies power for operating each part of the electronic cassette 15a. The battery 36 is a relatively small battery that can be accommodated in the thin electronic cassette 15a. The battery 36 can be taken out by opening a lid 38 provided on one side of the electronic cassette 15a and taking it out. The antenna 37 transmits and receives radio waves for wireless communication to and from the imaging control device 12.

  On one side surface of the electronic cassette 15a, a power switch 39, a socket 40, an indicator 41, and a speaker 42 are arranged. The socket 40 is provided for wired connection with the imaging control device 12, and a connector of a communication cable (not shown) connected to the imaging control device 12 is inserted into the socket 40. The communication cable is used when wireless communication between the electronic cassette 15a and the imaging control device 12 becomes impossible due to the remaining amount of the battery 36 being insufficient. When the communication cable is used, wired communication with the imaging control device 12 becomes possible and power can be supplied from the imaging control device 12 to the electronic cassette 15a.

  The indicator 41 is composed of, for example, multicolored LEDs, and displays on / off of the power of the electronic cassette 15a, the remaining amount of the battery 36, the wireless communication status, and the like. The speaker 42 outputs sound (such as a beep sound) for reporting an approximate position of the electronic cassette 15a in the photographing room.

  When not in use, the electronic cassette 15a operates in a sleep mode that supplies power only to communication functions (such as the communication control unit 53, see FIG. 3) and stops power supply to other units to reduce power consumption. The electronic cassette 15a receives a first activation signal (corresponding to a first instruction signal, which will be described later) from the imaging control device 12, and supplies power to each part other than the communication function to operate the X-ray detector 35, etc. Transition from the sleep mode to an imaging preparation mode in which an X-ray image can be immediately output. On the other hand, when the second activation signal (corresponding to the second instruction signal) is received, the communication mode shifts to a news mode in which power is supplied to the function of the speaker 42. When the sleep mode is switched to the shooting preparation mode, the display of the indicator 41 is also switched from red to green, for example. In the news mode, the display of the indicator 41 is not switched. Since the electronic cassette 15b has the same configuration as the electronic cassette 15a, description thereof is omitted.

  In FIG. 3, the imaging control device 12 controls the imaging operation of the X-ray source 14 and the electronic cassettes 15a and 15b. The console 13 inputs an imaging instruction to the imaging control device 12 and imaging conditions (such as tube voltage of the X-ray tube 16, tube current, exposure time, which of the electronic cassettes 15a and 15b is used). Operated when setting.

  The imaging control device 12 gives an operation command to the X-ray source 14 and the electronic cassettes 15a and 15b so that their operation timings are synchronized based on the imaging conditions and imaging instructions received from the console 13. Image data output by radio waves from the electronic cassettes 15 a and 15 b is input to the console 13 via the imaging control device 12. The console 13 includes a personal computer and a workstation, and performs image processing on received image data, displays an X-ray image on a display, and uploads the image data to a data storage device such as an image storage server.

  The imaging control device 12 transmits a first activation signal to the other one of the electronic cassettes 15a and 15b that is selected for use in the console 13, and a second activation signal to the other. The imaging control device 12 transmits the second activation signal first, and transmits the first activation signal after elapse of a predetermined time (sound output time of electronic cassette not used, see FIG. 4).

  The X-ray source control unit 50 comprehensively controls the operation of each unit of the X-ray source 14. The X-ray source control unit 50 controls the operation of the X-ray tube 16 via the driver 51 and operates the X-ray tube 16 under the imaging conditions and operation timing designated by the imaging control device 12. In addition, a communication control unit 53 is connected to the X-ray source control unit 50, and the communication control unit 53 inputs various information and signals from the imaging control apparatus 12 received by the socket 54 to the X-ray source control unit 50. .

  The cassette control unit 60 comprehensively controls the operation of each unit of the electronic cassette 15a. The cassette control unit 60 controls the operation of the X-ray detector 35 via the driver 61 and operates the X-ray detector 35 at the operation timing specified by the imaging control device 12. Further, the cassette control unit 60 receives image data from a signal processing unit 62 having an integrating amplifier and an A / D converter.

  The communication control unit 63 is connected to the antenna 37 and the socket 40 described above. The communication control unit 63 mediates transmission / reception of various information and signals including image data between the antenna 37 or the socket 40 and the cassette control unit 60. In addition, the case where it connects with the imaging | photography control apparatus 12 with the communication cable using the socket 40 is shown with the dotted-line arrow.

  The power supply unit 64 supplies power from the battery 36 or power from the imaging control device 12 via the socket 40 to each part of the electronic cassette 15 a via the cassette control unit 60. The cassette control unit 60 selectively supplies power to each unit in accordance with each mode such as a sleep mode and a news mode.

  The electronic cassette 15a incorporates an EEPROM 65 in which an ID that can be individually identified is stored. The ID may be set when each product is manufactured and shipped, or may be arbitrarily set on the hospital side. When the electronic cassette 15 a receives the first activation signal from the imaging control device 12 and shifts to the imaging preparation mode, the electronic cassette 15 a reads the ID from the EEPROM 65 and transmits it to the console 13.

  The cassette control unit 60 controls the sound output of the speaker 42 via the driver 66. As shown in FIG. 4, when the first activation signal is received from the imaging control device 12 (when the electronic cassette is used), the cassette control unit 60 outputs the sound volume (sound volume, (Sound pressure) is controlled to gradually increase. On the other hand, when the second activation signal is received (when the electronic cassette is not used), control is performed so that the volume gradually decreases.

  Since the first activation signal is transmitted after a predetermined time has elapsed since the second activation signal was transmitted, the sound from the speaker 42 of each electronic cassette 15a, 15b is relatively louder than the unused electronic cassette. The sound will gradually decrease and disappear. Immediately after that, the electronic cassette used starts to sound at a low volume, gradually increases in volume, and then disappears after the same time as the one not used.

  Humans can grasp the approximate position of the sound source based on the difference in sound volume between the left and right ears. For this reason, as shown in FIG. 4, if the sound is output from the speaker 42 of each electronic cassette 15a, 15b and the sound is heard in which direction, the relative position of the electronic cassette that is not used and the electronic cassette that is used is used. The radiologist can identify the position (tray 20 or holder 22) in the imaging room where the electronic cassette to be performed is located.

  The cassette control unit 60 of the electronic cassette that is not used stops power supply to the function of the speaker 42 after outputting the sound, and shifts from the report mode to the sleep mode again.

  Next, the effect | action by the said structure is demonstrated with reference to the flowchart of FIG. First, the brakes of the lifting mechanism of the arm or column 18, the bed 19 or the vertical movement mechanism of the stand 21, the suspension type moving device 11 and the like are released, and these are operated manually or electrically to operate the X-ray source 14 and the electronic device. Positioning with the cassette 15a or the electronic cassette 15b is performed.

  After the positioning, each of the moving mechanisms, the suspension type moving device 11 and the like are braked. Then, as shown in step 10 (S10) of FIG. When the photographing condition is input, a second activation signal is transmitted from the photographing control device 12 to an electronic cassette that is not used among the electronic cassettes 15a and 15b (S11).

  In response to the second activation signal, the electronic cassette that is not used switches from the sleep mode to the news mode in which power is supplied to the function of the speaker 42. Then, the cassette control unit 60 outputs sound from the speaker 42 via the driver 66 (S12). The sound starts off at a relatively high volume, and then the volume gradually decreases and disappears. After the sound is output, the electronic cassette that is not used is stopped to supply power to the function of the speaker 42 and returned to the sleep mode again (S13).

  After the elapse of a predetermined time corresponding to the audio output time of the electronic cassette that is not used, the first activation signal is transmitted from the imaging control device 12 to the electronic cassette that is supposed to be used in the imaging conditions among the electronic cassettes 15a and 15b (S14). .

  In response to the first activation signal, the electronic cassette to be used switches from the sleep mode to the imaging preparation mode in which power is supplied to each unit other than the wireless communication function. Then, the cassette controller 60 outputs sound from the speaker 42 via the driver 66 (S15). The sound at this time begins to sound almost simultaneously with the stop of the sound output from the speaker 42 of the electronic cassette that is not used, and the sound volume is initially low and gradually increases and disappears (S16).

  The radiologist listens to the sound from the speakers 42 of the electronic cassettes 15a and 15b, and grasps the positions of the electronic cassettes 15a and 15b in the photographing room from the order of sounding and the volume difference. Then, it is determined whether the one selected as the electronic cassette to be used is set on the appliance (the bed 19 or the stand 21) to be photographed. If it is different from the intention, replace each electronic cassette 15a, 15b (set the tray 20 of the bed 19 on the holder 22 of the stand 21 and set the one set on the holder 22 on the tray 20. )

  If the result of determination by listening to the sound is the same as the intention of the user, the subject is in a supine or standing position at a predetermined position, and then an exposure start is instructed. In response to an instruction to start exposure, X-rays are irradiated from the X-ray tube 16 of the X-ray source 14 toward the subject under the control of the imaging control device 12, and selected from the electronic cassettes 15a and 15b. X-rays are detected by the X-ray detector 35 of the electronic cassette. The X-ray detected by the X-ray detector 35 is converted into a digital X-ray image by the signal processing unit 62 and transmitted to the console 13 through the imaging control device 12. In addition to being displayed on the display of the console 13, the X-ray image is recorded in a data storage such as an image server.

  As described above, according to the present invention, since the location of the electronic cassette to be used can be reported by voice, there is no need to confirm whether or not the electronic cassette according to his / her intention is really selected. In such a case, an instruction to start exposure can be given immediately, and the time required for imaging can be shortened. The work burden on the radiologist can be reduced. In addition, there is also an effect of preventing erroneous photographing while setting an electronic cassette that is not used, and the burden on the patient due to re-imaging can be reduced.

  The electronic cassette is provided with an indicator, and the display of the indicator is changed when the mode is changed from the sleep mode to the shooting preparation mode. Therefore, if the indicator can be easily visually recognized, the notification by sound is unnecessary. However, if the electronic cassette is set in the tray or holder, the indicator may be hidden and not visible, or the indicator display may not be visible at a distance. In such a case, the electronic cassette may be pulled out of the tray or holder or close to it. It is necessary to check the display. According to the present invention, such a troublesome confirmation work becomes unnecessary. Conversely, the indicator may be eliminated and only the speaker may be used.

  First, output sound from an unused electronic cassette, gradually turn the volume down and turn it off, then continue to output sound from the electronic cassette you use to gradually increase the volume, and sharpen the sound output method. Therefore, it becomes easier to specify the location of each electronic cassette. Moreover, since the electronic cassette to be used is sounded later, it can be impressed to the radiographer that the electronic cassette is selected.

  The number of electronic cassettes is not limited to two in the above embodiment. When handling two or more electronic cassettes, for example, the console 13 manages the electronic cassette use history information 70 shown in FIG. The usage history information 70 is provided with basic items such as the use and size of each electronic cassette identified by the ID, and items indicating the usage status of each electronic cassette such as currently used and last used. The item indicating the usage status is updated based on the input condition of the imaging condition and the ID sent from the electronic cassette when the mode is shifted to the imaging preparation mode. When centrally managing the electronic cassettes in a plurality of shooting rooms, which shooting room is used is also registered in the usage history information 70.

  In this case, as an electronic cassette that is not used and transmits a second activation signal to generate a sound, for example, an electronic cassette that is in the same photographing room as the electronic cassette that has been selected for use and whose status has been used last time is selected. Of course, you may choose at random.

  If an unused electronic cassette that transmits a second activation signal and makes a sound is placed beside the electronic cassette that is used by accident, the sound of each electronic cassette cannot be heard. It is also possible for a radiologist to inadvertently hear a sound. In order to deal with this problem, a reconfirmation button is prepared, and when the button is operated, a sound is output, and another electronic cassette that is not used is selected again, and the sound is output again.

  The sounding time may be set in advance as in the above embodiment, or may be manually stopped by providing a sound stop button. When it is set in advance, it is preferably shorter than the approximate work time required for visually recognizing the conventional indicator.

  An electronic cassette that is not used may be placed in a position away from the bed or stand. It is also possible to install a battery charging cradle as a place for the electronic cassette. If the location is determined to some extent, there is no possibility of confusion between the electronic cassette that is not used and the voice from the electronic cassette that is used.

  If the electronic cassette that was used last time is selected and used, the location confirmation by voice has already been completed, so it is not necessary to output the voice. It is only necessary to output a sound when a selection is made to switch from using the electronic cassette used last time to using another electronic cassette.

  The audio output method of the above embodiment is an example, and the present invention is not limited to this. For example, contrary to the above-described embodiment, the sound may be played first from the electronic cassette to be used, or the transition of the volume (volume high to small, small to large) shown in FIG. (From large to small). Moreover, you may sound an audio | voice from each electronic cassette overlapping predetermined time. For example, the electronic cassette that is used and the electronic cassette that is not used may be simultaneously sounded at the same volume, and the volume of the electronic cassette that is not used may be gradually reduced.

  In addition to or instead of changing the volume, the pitch (frequency) or tone may be changed. For example, the pitch of sound from an electronic cassette that is not used is increased, and the electronic cassette that is not used is decreased. In accordance with the volume transition of the above embodiment, the pitch of the voice of the electronic cassette that is not used may be changed from high to low, and the pitch of the voice of the electronic cassette that is used may be changed from low to high. Alternatively, the electronic cassette that is not used is a beep sound, and the electronic cassette that is used is a message such as “the selected cassette”. This also makes it possible to specify the location of the electronic cassette.

  It should be noted that the X-ray imaging system according to the present invention is not limited to the above-described embodiment, and various configurations can be adopted without departing from the gist of the present invention.

  The X-ray imaging system 2 is not limited to the type installed in the radiography room of a hospital, but the emergency medical treatment for accidents, disasters, etc. in the types installed in the roundabouts, X-ray sources, electronic cassettes, mobile devices, imaging control devices, etc. The present invention may be applied to a portable system that can be carried to the site requiring treatment or the home of a patient receiving home medical care to perform X-ray imaging.

  In the above embodiment, the mode of operating the X-ray detector in response to a command from the imaging control device has been described. However, the X-ray detector self-detects X-ray irradiation and receives a command from the imaging control device. Alternatively, the X-ray detector may be operated.

  The X-ray detector is not limited to the direct conversion system of the above-described embodiment, and after the incident X-ray is once converted into visible light by a scintillator, the visible light is converted into a solid detection element such as amorphous silicon (a-Si). You may use the indirect conversion system which converts into an electrical signal. A well-known X-ray detector such as an imaging plate may be used instead of the FPD.

  Although the electronic cassette and the imaging control device are connected wirelessly, they may be connected by wire. The functions of the cassette controller and the driver of the X-ray detector may be provided in the imaging control apparatus instead of the electronic cassette. It is also possible to provide a driver which is a high voltage generator separately from the X-ray source.

  The present invention can be applied not only to X-rays but also to imaging systems that use other radiation such as gamma rays.

2 X-ray imaging system 10 Imaging device 12 Imaging control device 13 Console 14 X-ray source 15a, 15b Electronic cassette 19 Sleeper 21 Stand 35 X-ray detector 41 Indicator 42 Speaker 50 X-ray source control unit 60 Cassette control unit 66 Driver 70 Usage history information

Claims (10)

A radiation detector for detecting an image by receiving radiation transmitted through the subject;
Receiving means for receiving various control signals from the external control device;
A speaker that outputs sound for reporting the location of the radiation image detection device;
Audio output control means for controlling audio output by a speaker;
A portable housing for housing each part,
The voice output control means is selected to use the radiological image detection apparatus for imaging, and when the first instruction signal from the external control apparatus is received by the receiving means, and the radiological image detection apparatus is used for imaging. A portable radiographic image detection apparatus that outputs a sound from a speaker when a second instruction signal from an external control apparatus is received by the receiving means without being selected.   The voice output control means outputs from the speaker a voice in which at least one of a volume, a pitch, and a tone color differs depending on whether the receiving means receives the first instruction signal or the second instruction signal. The portable radiographic image detection apparatus according to claim 1, wherein:   The voice output control means changes the way of increasing or decreasing the volume or the pitch between the case where the receiving means receives the first instruction signal and the case where the second instruction signal is received. The portable radiation image detection apparatus according to claim 1 or 2.   The sound output control means is configured to increase the volume of one sound when receiving the first instruction signal and when receiving the second instruction signal, from the small to the large volume of the other, or from the small to the high volume of the one sound. 4. The portable radiographic image detection apparatus according to claim 1, wherein the other is changed from low to high, and the other is changed from low to high. 5.   The portable radiographic image detection apparatus according to claim 4, wherein when one receives the second instruction signal, the other receives the first instruction signal. A radiation detector that detects an image by receiving radiation transmitted through the subject, a receiving unit that receives various control signals from the external control device, a speaker that outputs sound for reporting the location of the radiation image detection device, and A plurality of portable radiographic image detection devices having audio output control means for controlling audio output by a speaker and a portable housing for housing each part;
An operation input device for selecting a radiation image detection device to be used for imaging from among a plurality of radiation image detection devices,
And an external control device that transmits various control signals to the radiological image detection device and controls driving of the radiological image detection device,
The external control device transmits a first instruction signal and a second instruction signal to one of the radiation image detection device selected by the operation input device and the radiation image detection device not selected, respectively. And
The radiographic image capturing system according to claim 1, wherein when the receiving unit receives the first instruction signal and the second instruction signal, the audio output control unit of the radiographic image detection apparatus outputs audio from a speaker.   The radiographic imaging system according to claim 6, wherein the external control device transmits the second instruction signal first, and transmits the first instruction signal after a predetermined time has elapsed.   The radiographic imaging system according to claim 7, wherein the predetermined time is an audio output time of one of the radiographic image detection devices not selected by the operation input device. The external control device manages a use history of the radiological image detection device;
9. The second instruction signal is transmitted to a recently used radiographic image detection device among radiographic image detection devices not selected by the operation input device. Radiation imaging system. An operation input step for selecting a radiation image detection device to be used for imaging among a plurality of portable radiation image detection devices with an operation input device;
A transmission step of transmitting a voice output instruction from the external control device to one of the radiation image detection device selected in the operation input step and the radiation image detection device not selected;
A portable radiographic image detection apparatus comprising: a voice output step of outputting a sound for reporting the location of the radiographic image detection apparatus from a speaker of the radiographic image detection apparatus that has received an instruction in the transmission step. How to confirm the location of

Images